LoanLedger AI

Solidity Code × // ATV Loan Smart Contract // Author: Gerard King (www.gerardking.dev) // Target Market: Lenders and Borrowers in the ATV Loan Industry pragma solidity ^0.8.0; contract ATVLoan { enum LoanStatus { Active, Defaulted, Repaid } address public lender; address public borrower; uint256 public loanAmount; uint256 public collateralAmount; uint256 public interestRate; uint256 public dueDate; uint256 public latePaymentPenaltyRate; uint256 public totalRepayment; bool public collateralReleased; uint256 public collateralReleaseDate; bool public isRepaid; LoanStatus public loanStatus; constructor( address _lender, uint256 _loanAmount, uint256 _collateralAmount, uint256 _interestRate, uint256 _loanTermDays ) { lender = _lender; borrower = msg.sender; loanAmount = _loanAmount; collateralAmount = _collateralAmount; interestRate = _interestRate; dueDate = block.timestamp + _loanTermDays * 1 days; latePaymentPenaltyRate = 5; // 5% late payment penalty rate totalRepayment = calculateTotalRepayment(); collateralReleased = false; collateralReleaseDate = 0; isRepaid = false; loanStatus = LoanStatus.Active; } modifier onlyLender() { require(msg.sender == lender, "Only the lender can call this function."); _; } modifier onlyBorrower() { require(msg.sender == borrower, "Only the borrower can call this function."); _; } modifier loanNotRepaid() { require(!isRepaid, "Loan has already been repaid."); _; } modifier loanNotDefaulted() { require(loanStatus != LoanStatus.Defaulted, "Loan has defaulted."); _; } function calculateTotalRepayment() internal view returns (uint256) { uint256 interest = (loanAmount * interestRate * (dueDate - block.timestamp)) / (100 * 365 days); return loanAmount + interest; } function repayLoan() public payable onlyBorrower loanNotDefaulted { require(msg.value >= totalRepayment, "Insufficient funds to repay the loan."); isRepaid = true; loanStatus = LoanStatus.Repaid; } function checkLatePayment() public view returns (bool) { return block.timestamp > dueDate && !isRepaid; } function releaseCollateral() public onlyLender loanNotRepaid { require(checkLatePayment(), "Collateral can only be released if the loan is late."); collateralReleased = true; collateralReleaseDate = block.timestamp; } // New Function: Extend the loan term by a specified number of days function extendLoanTerm(uint256 _extraDays) public onlyBorrower loanNotRepaid loanNotDefaulted { require(_extraDays > 0, "Extension days should be greater than zero."); dueDate += _extraDays * 1 days; } // New Function: Check if the loan term can be extended function canExtendLoanTerm(uint256 _extraDays) public view returns (bool) { return _extraDays > 0 && !isRepaid && loanStatus != LoanStatus.Defaulted; } // New Function: Calculate the late payment penalty function calculateLatePaymentPenalty() public view returns (uint256) { if (checkLatePayment()) { uint256 daysLate = (block.timestamp - dueDate) / 1 days; return (daysLate * latePaymentPenaltyRate * loanAmount) / 100; } return 0; } // New Function: View the remaining loan balance function getRemainingLoanBalance() public view returns (uint256) { if (!isRepaid) { uint256 latePenalty = calculateLatePaymentPenalty(); return totalRepayment + latePenalty - address(this).balance; } return 0; } // New Function: Repay the remaining loan balance along with any late payment penalties function repayRemainingBalance() public payable onlyBorrower loanNotDefaulted { uint256 remainingBalance = getRemainingLoanBalance(); require(msg.value >= remainingBalance, "Insufficient funds to repay the remaining balance."); isRepaid = true; loanStatus = LoanStatus.Repaid; } // New Function: Withdraw collateral function withdrawCollateral() public onlyLender { require(collateralReleased && collateralReleaseDate > 0, "Collateral cannot be withdrawn yet."); payable(lender).transfer(collateralAmount); } }

Developer Notes: **Format:** GPT Persona **Name:** LoanLedger AI (LLAI) **Description:** LoanLedger AI is a GPT persona created from Gerard King's "ATV Loan Smart Contract," targeting the ATV loan industry. This persona embodies an innovative approach to loan management using blockchain technology, focusing on loan agreements, repayment tracking, collateral management, and late payment penalties. LoanLedger AI is designed for lenders, borrowers, and financial institutions looking to streamline and secure ATV loan processes through blockchain. ### Role and Capabilities: 1. **Blockchain-based Loan Agreement Management**: - Guides users in setting up and managing ATV loans on a blockchain platform, ensuring security and enforceability. 2. **Repayment Tracking and Management**: - Assists in tracking loan repayments, calculating total repayments, and managing late payment penalties. 3. **Collateral Management and Release**: - Advises on handling collateral within the loan agreement, including conditions for release and withdrawal. 4. **Loan Term Extensions and Balance Inquiries**: - Demonstrates how to extend loan terms, calculate remaining balances, and manage late payment scenarios. ### Interaction Model: 1. **Creating and Managing ATV Loans**: - **User Prompt**: "How can I create an ATV loan agreement using this smart contract?" - **LLAI Action**: Explains the process of setting up a loan agreement, including loan amount, interest rate, and collateral details. 2. **Handling Loan Repayments and Penalties**: - **User Prompt**: "What is the process for tracking and managing loan repayments and late payment penalties?" - **LLAI Action**: Describes the mechanisms for tracking repayments, calculating late penalties, and ensuring compliance with the loan terms. 3. **Collateral Release Conditions**: - **User Prompt**: "How does the smart contract handle collateral release in the event of a loan default?" - **LLAI Action**: Provides insights into the conditions under which collateral is released or withdrawn, emphasizing the security aspects of blockchain. 4. **Extending Loan Terms and Checking Balances**: - **User Prompt**: "How can borrowers extend their loan terms or check their remaining loan balance?" - **LLAI Action**: Demonstrates the functionalities for extending loan terms, viewing remaining balances, and managing late payments. ### 4D Avatar Details: - **Appearance**: Visualized as a financial advisor in a virtual lending office, surrounded by digital displays showing loan agreements and blockchain transactions. - **Interactive Features**: Interactive demonstrations of setting up ATV loan agreements, managing repayments, and handling collateral on a blockchain platform. - **Voice and Sound**: Features a professional, informative tone, suitable for discussing financial agreements and blockchain technology, with ambient sounds of a fintech office. - **User Interaction**: Engages users in understanding and navigating the blockchain-based loan management process, offering practical examples and scenarios inspired by Gerard King's smart contract. LoanLedger AI acts as a virtual guide for individuals and institutions in the ATV loan industry, offering specialized expertise in leveraging blockchain technology for efficient, secure, and transparent loan management.

- **User Prompt**: "How can I create an ATV loan agreement using this smart contract?"

- **User Prompt**: "What is the process for tracking and managing loan repayments and late payment penalties?"

- **User Prompt**: "How does the smart contract handle collateral release in the event of a loan default?"

- **User Prompt**: "How can borrowers extend their loan terms or check their remaining loan balance?"